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    <title>MarkerClusterer for Google Maps v3 version 1.0 Reference</title>
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    <h1>MarkerClusterer for Google Maps v3</h1>
    <p>
The library creates and manages per-zoom-level clusters for large amounts of
markers.
<br/>
This is a v3 implementation of the 
<a href="http://gmaps-utility-library-dev.googlecode.com/svn/tags/markerclusterer/"
>v2 MarkerClusterer</a>.</p>
    <p>For a description and examples of how to use this library, check out the <a href="examples.html">how-to</a>.</p>
    
      <h2><a name="MarkerClusterer"></a>class MarkerClusterer</h2>
      <p>  This class extends <code>google.maps.OverlayView</code>.</p>
      
        <h3>Constructor</h3>
        <table summary="class MarkerClusterer - Constructor" width="90%">
          
          <tbody>
            <tr>
              <th>Constructor</th>
              
              <th>Description</th>
            </tr>
            
              <tr class="odd">
                <td><code>MarkerClusterer(<span class="type">map:google.maps.Map</span>, <span class="type">opt_markers:Array.&lt;google.maps.Marker&gt;</span>, <span class="type">opt_options:Object</span>)</code></td>
                
                <td>A Marker Clusterer that clusters markers.</td>
              </tr>
            
          </tbody>
        </table>
      
        <h3>Methods</h3>
        <table summary="class MarkerClusterer - Methods" width="90%">
          
          <tbody>
            <tr>
              <th>Methods</th>
              
                
                  <th>Return&nbsp;Value</th>
                
              
              <th>Description</th>
            </tr>
            
              <tr class="odd">
                <td><code>addMarker(<span class="type">marker:google.maps.Marker</span>, <span class="type">opt_nodraw:boolean</span>)</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Adds a marker to the clusterer and redraws if needed.</td>
              </tr>
            
              <tr class="even">
                <td><code>addMarkers(<span class="type">markers:Array.&lt;google.maps.Marker&gt;</span>, <span class="type">opt_nodraw:boolean</span>)</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Add an array of markers to the clusterer.</td>
              </tr>
            
              <tr class="odd">
                <td><code>clearMarkers()</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Clears all clusters and markers from the clusterer.</td>
              </tr>
            
              <tr class="even">
                <td><code>getCalculator()</code></td>
                
                  
                    <td><code>function(Array|number)</code></td>
                  
                
                <td>Get the calculator function.</td>
              </tr>
            
              <tr class="odd">
                <td><code>getExtendedBounds(<span class="type">bounds:google.maps.LatLngBounds</span>)</code></td>
                
                  
                    <td><code>google.maps.LatLngBounds</code></td>
                  
                
                <td>Extends a bounds object by the grid size.</td>
              </tr>
            
              <tr class="even">
                <td><code>getGridSize()</code></td>
                
                  
                    <td><code>number</code></td>
                  
                
                <td>Returns the size of the grid.</td>
              </tr>
            
              <tr class="odd">
                <td><code>getMap()</code></td>
                
                  
                    <td><code>google.maps.Map</code></td>
                  
                
                <td>Returns the google map that the clusterer is associated with.</td>
              </tr>
            
              <tr class="even">
                <td><code>getMarkers()</code></td>
                
                  
                    <td><code>Array.<google.maps.Marker></code></td>
                  
                
                <td>Returns the array of markers in the clusterer.</td>
              </tr>
            
              <tr class="odd">
                <td><code>getMaxZoom()</code></td>
                
                  
                    <td><code>number</code></td>
                  
                
                <td>Gets the max zoom for the clusterer.</td>
              </tr>
            
              <tr class="even">
                <td><code>getStyles()</code></td>
                
                  
                    <td><code>Object</code></td>
                  
                
                <td>Gets the styles.</td>
              </tr>
            
              <tr class="odd">
                <td><code>getTotalClusters()</code></td>
                
                  
                    <td><code>number</code></td>
                  
                
                <td>Returns the number of clusters in the clusterer.</td>
              </tr>
            
              <tr class="even">
                <td><code>getTotalMarkers()</code></td>
                
                  
                    <td><code>Array.<google.maps.Marker></code></td>
                  
                
                <td>Returns the array of markers in the clusterer.</td>
              </tr>
            
              <tr class="odd">
                <td><code>isZoomOnClick()</code></td>
                
                  
                    <td><code>boolean</code></td>
                  
                
                <td>Whether zoom on click is set.</td>
              </tr>
            
              <tr class="even">
                <td><code>redraw()</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Redraws the clusters.</td>
              </tr>
            
              <tr class="odd">
                <td><code>removeMarker(<span class="type">marker:google.maps.Marker</span>)</code></td>
                
                  
                    <td><code>boolean</code></td>
                  
                
                <td>Remove a marker from the cluster.</td>
              </tr>
            
              <tr class="even">
                <td><code>resetViewport()</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Clears all existing clusters and recreates them.</td>
              </tr>
            
              <tr class="odd">
                <td><code>setCalculator(<span class="type">calculator:function(Array|number)</span>)</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Set the calculator function.</td>
              </tr>
            
              <tr class="even">
                <td><code>setGridSize(<span class="type">size:number</span>)</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Returns the size of the grid.</td>
              </tr>
            
              <tr class="odd">
                <td><code>setMap(<span class="type">map:google.maps.Map</span>)</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Sets the google map that the clusterer is associated with.</td>
              </tr>
            
              <tr class="even">
                <td><code>setMaxZoom(<span class="type">maxZoom:number</span>)</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Sets the max zoom for the clusterer.</td>
              </tr>
            
              <tr class="odd">
                <td><code>setStyles(<span class="type">styles:Object</span>)</code></td>
                
                  
                    <td><code>None</code></td>
                  
                
                <td>Sets the styles.</td>
              </tr>
            
          </tbody>
        </table>
      
    
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